Secret Washington Garden Has Vital Government Mission
![Secret Washington Garden Has Vital Government Mission](https://gdb.voanews.com/01000000-0aff-0242-c9ff-08db6e7c6e84_tv_w800_h450.jpg)
Nestled among the bustling city streets of Washington is a hidden oasis that many Americans don't know exists. Congress established the U.S. National Arboretum in 1927. Vital scientific research is under way at the sprawling 183-hectare compound. VOA's Dora Mekouar reports on the arboretum’s critical government mission. Camera: Adam Greenbaum